// Copyright 2009 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Windows system calls. package windows import ( errorspkg "errors" "fmt" "runtime" "sync" "syscall" "time" "unicode/utf16" "unsafe" ) type ( Handle uintptr HWND uintptr ) const ( InvalidHandle = ^Handle(0) InvalidHWND = ^HWND(0) // Flags for DefineDosDevice. DDD_EXACT_MATCH_ON_REMOVE = 0x00000004 DDD_NO_BROADCAST_SYSTEM = 0x00000008 DDD_RAW_TARGET_PATH = 0x00000001 DDD_REMOVE_DEFINITION = 0x00000002 // Return values for GetDriveType. DRIVE_UNKNOWN = 0 DRIVE_NO_ROOT_DIR = 1 DRIVE_REMOVABLE = 2 DRIVE_FIXED = 3 DRIVE_REMOTE = 4 DRIVE_CDROM = 5 DRIVE_RAMDISK = 6 // File system flags from GetVolumeInformation and GetVolumeInformationByHandle. FILE_CASE_SENSITIVE_SEARCH = 0x00000001 FILE_CASE_PRESERVED_NAMES = 0x00000002 FILE_FILE_COMPRESSION = 0x00000010 FILE_DAX_VOLUME = 0x20000000 FILE_NAMED_STREAMS = 0x00040000 FILE_PERSISTENT_ACLS = 0x00000008 FILE_READ_ONLY_VOLUME = 0x00080000 FILE_SEQUENTIAL_WRITE_ONCE = 0x00100000 FILE_SUPPORTS_ENCRYPTION = 0x00020000 FILE_SUPPORTS_EXTENDED_ATTRIBUTES = 0x00800000 FILE_SUPPORTS_HARD_LINKS = 0x00400000 FILE_SUPPORTS_OBJECT_IDS = 0x00010000 FILE_SUPPORTS_OPEN_BY_FILE_ID = 0x01000000 FILE_SUPPORTS_REPARSE_POINTS = 0x00000080 FILE_SUPPORTS_SPARSE_FILES = 0x00000040 FILE_SUPPORTS_TRANSACTIONS = 0x00200000 FILE_SUPPORTS_USN_JOURNAL = 0x02000000 FILE_UNICODE_ON_DISK = 0x00000004 FILE_VOLUME_IS_COMPRESSED = 0x00008000 FILE_VOLUME_QUOTAS = 0x00000020 // Flags for LockFileEx. LOCKFILE_FAIL_IMMEDIATELY = 0x00000001 LOCKFILE_EXCLUSIVE_LOCK = 0x00000002 // Return value of SleepEx and other APC functions WAIT_IO_COMPLETION = 0x000000C0 ) // StringToUTF16 is deprecated. Use UTF16FromString instead. // If s contains a NUL byte this function panics instead of // returning an error. func StringToUTF16(s string) []uint16 { a, err := UTF16FromString(s) if err != nil { panic("windows: string with NUL passed to StringToUTF16") } return a } // UTF16FromString returns the UTF-16 encoding of the UTF-8 string // s, with a terminating NUL added. If s contains a NUL byte at any // location, it returns (nil, syscall.EINVAL). func UTF16FromString(s string) ([]uint16, error) { return syscall.UTF16FromString(s) } // UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s, // with a terminating NUL and any bytes after the NUL removed. func UTF16ToString(s []uint16) string { return syscall.UTF16ToString(s) } // StringToUTF16Ptr is deprecated. Use UTF16PtrFromString instead. // If s contains a NUL byte this function panics instead of // returning an error. func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] } // UTF16PtrFromString returns pointer to the UTF-16 encoding of // the UTF-8 string s, with a terminating NUL added. If s // contains a NUL byte at any location, it returns (nil, syscall.EINVAL). func UTF16PtrFromString(s string) (*uint16, error) { a, err := UTF16FromString(s) if err != nil { return nil, err } return &a[0], nil } // UTF16PtrToString takes a pointer to a UTF-16 sequence and returns the corresponding UTF-8 encoded string. // If the pointer is nil, it returns the empty string. It assumes that the UTF-16 sequence is terminated // at a zero word; if the zero word is not present, the program may crash. func UTF16PtrToString(p *uint16) string { if p == nil { return "" } if *p == 0 { return "" } // Find NUL terminator. n := 0 for ptr := unsafe.Pointer(p); *(*uint16)(ptr) != 0; n++ { ptr = unsafe.Pointer(uintptr(ptr) + unsafe.Sizeof(*p)) } return UTF16ToString(unsafe.Slice(p, n)) } func Getpagesize() int { return 4096 } // NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention. // This is useful when interoperating with Windows code requiring callbacks. // The argument is expected to be a function with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr. func NewCallback(fn interface{}) uintptr { return syscall.NewCallback(fn) } // NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention. // This is useful when interoperating with Windows code requiring callbacks. // The argument is expected to be a function with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr. func NewCallbackCDecl(fn interface{}) uintptr { return syscall.NewCallbackCDecl(fn) } // windows api calls //sys GetLastError() (lasterr error) //sys LoadLibrary(libname string) (handle Handle, err error) = LoadLibraryW //sys LoadLibraryEx(libname string, zero Handle, flags uintptr) (handle Handle, err error) = LoadLibraryExW //sys FreeLibrary(handle Handle) (err error) //sys GetProcAddress(module Handle, procname string) (proc uintptr, err error) //sys GetModuleFileName(module Handle, filename *uint16, size uint32) (n uint32, err error) = kernel32.GetModuleFileNameW //sys GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) = kernel32.GetModuleHandleExW //sys SetDefaultDllDirectories(directoryFlags uint32) (err error) //sys AddDllDirectory(path *uint16) (cookie uintptr, err error) = kernel32.AddDllDirectory //sys RemoveDllDirectory(cookie uintptr) (err error) = kernel32.RemoveDllDirectory //sys SetDllDirectory(path string) (err error) = kernel32.SetDllDirectoryW //sys GetVersion() (ver uint32, err error) //sys FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW //sys ExitProcess(exitcode uint32) //sys IsWow64Process(handle Handle, isWow64 *bool) (err error) = IsWow64Process //sys IsWow64Process2(handle Handle, processMachine *uint16, nativeMachine *uint16) (err error) = IsWow64Process2? //sys CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile Handle) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW //sys CreateNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *SecurityAttributes) (handle Handle, err error) [failretval==InvalidHandle] = CreateNamedPipeW //sys ConnectNamedPipe(pipe Handle, overlapped *Overlapped) (err error) //sys DisconnectNamedPipe(pipe Handle) (err error) //sys GetNamedPipeClientProcessId(pipe Handle, clientProcessID *uint32) (err error) //sys GetNamedPipeServerProcessId(pipe Handle, serverProcessID *uint32) (err error) //sys GetNamedPipeInfo(pipe Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) //sys GetNamedPipeHandleState(pipe Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW //sys SetNamedPipeHandleState(pipe Handle, state *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32) (err error) = SetNamedPipeHandleState //sys readFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = ReadFile //sys writeFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = WriteFile //sys GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error) //sys SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff] //sys CloseHandle(handle Handle) (err error) //sys GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle] //sys SetStdHandle(stdhandle uint32, handle Handle) (err error) //sys findFirstFile1(name *uint16, data *win32finddata1) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstFileW //sys findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW //sys FindClose(handle Handle) (err error) //sys GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error) //sys GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (err error) //sys SetFileInformationByHandle(handle Handle, class uint32, inBuffer *byte, inBufferLen uint32) (err error) //sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW //sys SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW //sys CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW //sys RemoveDirectory(path *uint16) (err error) = RemoveDirectoryW //sys DeleteFile(path *uint16) (err error) = DeleteFileW //sys MoveFile(from *uint16, to *uint16) (err error) = MoveFileW //sys MoveFileEx(from *uint16, to *uint16, flags uint32) (err error) = MoveFileExW //sys LockFileEx(file Handle, flags uint32, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error) //sys UnlockFileEx(file Handle, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error) //sys GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW //sys GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW //sys SetEndOfFile(handle Handle) (err error) //sys SetFileValidData(handle Handle, validDataLength int64) (err error) //sys GetSystemTimeAsFileTime(time *Filetime) //sys GetSystemTimePreciseAsFileTime(time *Filetime) //sys GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff] //sys CreateIoCompletionPort(filehandle Handle, cphandle Handle, key uintptr, threadcnt uint32) (handle Handle, err error) //sys GetQueuedCompletionStatus(cphandle Handle, qty *uint32, key *uintptr, overlapped **Overlapped, timeout uint32) (err error) //sys PostQueuedCompletionStatus(cphandle Handle, qty uint32, key uintptr, overlapped *Overlapped) (err error) //sys CancelIo(s Handle) (err error) //sys CancelIoEx(s Handle, o *Overlapped) (err error) //sys CreateProcess(appName *uint16, commandLine *uint16, procSecurity *SecurityAttributes, threadSecurity *SecurityAttributes, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (err error) = CreateProcessW //sys CreateProcessAsUser(token Token, appName *uint16, commandLine *uint16, procSecurity *SecurityAttributes, threadSecurity *SecurityAttributes, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (err error) = advapi32.CreateProcessAsUserW //sys initializeProcThreadAttributeList(attrlist *ProcThreadAttributeList, attrcount uint32, flags uint32, size *uintptr) (err error) = InitializeProcThreadAttributeList //sys deleteProcThreadAttributeList(attrlist *ProcThreadAttributeList) = DeleteProcThreadAttributeList //sys updateProcThreadAttribute(attrlist *ProcThreadAttributeList, flags uint32, attr uintptr, value unsafe.Pointer, size uintptr, prevvalue unsafe.Pointer, returnedsize *uintptr) (err error) = UpdateProcThreadAttribute //sys OpenProcess(desiredAccess uint32, inheritHandle bool, processId uint32) (handle Handle, err error) //sys ShellExecute(hwnd Handle, verb *uint16, file *uint16, args *uint16, cwd *uint16, showCmd int32) (err error) [failretval<=32] = shell32.ShellExecuteW //sys GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) = user32.GetWindowThreadProcessId //sys LoadKeyboardLayout(name *uint16, flags uint32) (hkl Handle, err error) [failretval==0] = user32.LoadKeyboardLayoutW //sys UnloadKeyboardLayout(hkl Handle) (err error) = user32.UnloadKeyboardLayout //sys GetKeyboardLayout(tid uint32) (hkl Handle) = user32.GetKeyboardLayout //sys ToUnicodeEx(vkey uint32, scancode uint32, keystate *byte, pwszBuff *uint16, cchBuff int32, flags uint32, hkl Handle) (ret int32) = user32.ToUnicodeEx //sys GetShellWindow() (shellWindow HWND) = user32.GetShellWindow //sys MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) [failretval==0] = user32.MessageBoxW //sys ExitWindowsEx(flags uint32, reason uint32) (err error) = user32.ExitWindowsEx //sys shGetKnownFolderPath(id *KNOWNFOLDERID, flags uint32, token Token, path **uint16) (ret error) = shell32.SHGetKnownFolderPath //sys TerminateProcess(handle Handle, exitcode uint32) (err error) //sys GetExitCodeProcess(handle Handle, exitcode *uint32) (err error) //sys getStartupInfo(startupInfo *StartupInfo) = GetStartupInfoW //sys GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error) //sys DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error) //sys WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] //sys waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] = WaitForMultipleObjects //sys GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW //sys CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error) //sys GetFileType(filehandle Handle) (n uint32, err error) //sys CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW //sys CryptReleaseContext(provhandle Handle, flags uint32) (err error) = advapi32.CryptReleaseContext //sys CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) = advapi32.CryptGenRandom //sys GetEnvironmentStrings() (envs *uint16, err error) [failretval==nil] = kernel32.GetEnvironmentStringsW //sys FreeEnvironmentStrings(envs *uint16) (err error) = kernel32.FreeEnvironmentStringsW //sys GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, err error) = kernel32.GetEnvironmentVariableW //sys SetEnvironmentVariable(name *uint16, value *uint16) (err error) = kernel32.SetEnvironmentVariableW //sys ExpandEnvironmentStrings(src *uint16, dst *uint16, size uint32) (n uint32, err error) = kernel32.ExpandEnvironmentStringsW //sys CreateEnvironmentBlock(block **uint16, token Token, inheritExisting bool) (err error) = userenv.CreateEnvironmentBlock //sys DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock //sys getTickCount64() (ms uint64) = kernel32.GetTickCount64 //sys GetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error) //sys SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error) //sys GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW //sys SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW //sys GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW //sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW //sys commandLineToArgv(cmd *uint16, argc *int32) (argv **uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW //sys LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0] //sys LocalAlloc(flags uint32, length uint32) (ptr uintptr, err error) //sys SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error) //sys FlushFileBuffers(handle Handle) (err error) //sys GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW //sys GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW //sys GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW //sys GetFinalPathNameByHandle(file Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) = kernel32.GetFinalPathNameByHandleW //sys CreateFileMapping(fhandle Handle, sa *SecurityAttributes, prot uint32, maxSizeHigh uint32, maxSizeLow uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateFileMappingW //sys MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error) //sys UnmapViewOfFile(addr uintptr) (err error) //sys FlushViewOfFile(addr uintptr, length uintptr) (err error) //sys VirtualLock(addr uintptr, length uintptr) (err error) //sys VirtualUnlock(addr uintptr, length uintptr) (err error) //sys VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc //sys VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree //sys VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect //sys VirtualProtectEx(process Handle, address uintptr, size uintptr, newProtect uint32, oldProtect *uint32) (err error) = kernel32.VirtualProtectEx //sys VirtualQuery(address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQuery //sys VirtualQueryEx(process Handle, address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQueryEx //sys ReadProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesRead *uintptr) (err error) = kernel32.ReadProcessMemory //sys WriteProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesWritten *uintptr) (err error) = kernel32.WriteProcessMemory //sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile //sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW //sys FindFirstChangeNotification(path string, watchSubtree bool, notifyFilter uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.FindFirstChangeNotificationW //sys FindNextChangeNotification(handle Handle) (err error) //sys FindCloseChangeNotification(handle Handle) (err error) //sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW //sys CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) = crypt32.CertOpenStore //sys CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore //sys CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore //sys CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore //sys CertDeleteCertificateFromStore(certContext *CertContext) (err error) = crypt32.CertDeleteCertificateFromStore //sys CertDuplicateCertificateContext(certContext *CertContext) (dupContext *CertContext) = crypt32.CertDuplicateCertificateContext //sys PFXImportCertStore(pfx *CryptDataBlob, password *uint16, flags uint32) (store Handle, err error) = crypt32.PFXImportCertStore //sys CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain //sys CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain //sys CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext //sys CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext //sys CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy //sys CertGetNameString(certContext *CertContext, nameType uint32, flags uint32, typePara unsafe.Pointer, name *uint16, size uint32) (chars uint32) = crypt32.CertGetNameStringW //sys CertFindExtension(objId *byte, countExtensions uint32, extensions *CertExtension) (ret *CertExtension) = crypt32.CertFindExtension //sys CertFindCertificateInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevCertContext *CertContext) (cert *CertContext, err error) [failretval==nil] = crypt32.CertFindCertificateInStore //sys CertFindChainInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevChainContext *CertChainContext) (certchain *CertChainContext, err error) [failretval==nil] = crypt32.CertFindChainInStore //sys CryptAcquireCertificatePrivateKey(cert *CertContext, flags uint32, parameters unsafe.Pointer, cryptProvOrNCryptKey *Handle, keySpec *uint32, callerFreeProvOrNCryptKey *bool) (err error) = crypt32.CryptAcquireCertificatePrivateKey //sys CryptQueryObject(objectType uint32, object unsafe.Pointer, expectedContentTypeFlags uint32, expectedFormatTypeFlags uint32, flags uint32, msgAndCertEncodingType *uint32, contentType *uint32, formatType *uint32, certStore *Handle, msg *Handle, context *unsafe.Pointer) (err error) = crypt32.CryptQueryObject //sys CryptDecodeObject(encodingType uint32, structType *byte, encodedBytes *byte, lenEncodedBytes uint32, flags uint32, decoded unsafe.Pointer, decodedLen *uint32) (err error) = crypt32.CryptDecodeObject //sys CryptProtectData(dataIn *DataBlob, name *uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptProtectData //sys CryptUnprotectData(dataIn *DataBlob, name **uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptUnprotectData //sys WinVerifyTrustEx(hwnd HWND, actionId *GUID, data *WinTrustData) (ret error) = wintrust.WinVerifyTrustEx //sys RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW //sys RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey //sys RegQueryInfoKey(key Handle, class *uint16, classLen *uint32, reserved *uint32, subkeysLen *uint32, maxSubkeyLen *uint32, maxClassLen *uint32, valuesLen *uint32, maxValueNameLen *uint32, maxValueLen *uint32, saLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegQueryInfoKeyW //sys RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW //sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW //sys RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue //sys GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId //sys ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId //sys ClosePseudoConsole(console Handle) = kernel32.ClosePseudoConsole //sys createPseudoConsole(size uint32, in Handle, out Handle, flags uint32, pconsole *Handle) (hr error) = kernel32.CreatePseudoConsole //sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode //sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode //sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo //sys setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition //sys GetConsoleCP() (cp uint32, err error) = kernel32.GetConsoleCP //sys GetConsoleOutputCP() (cp uint32, err error) = kernel32.GetConsoleOutputCP //sys SetConsoleCP(cp uint32) (err error) = kernel32.SetConsoleCP //sys SetConsoleOutputCP(cp uint32) (err error) = kernel32.SetConsoleOutputCP //sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW //sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW //sys resizePseudoConsole(pconsole Handle, size uint32) (hr error) = kernel32.ResizePseudoConsole //sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot //sys Module32First(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32FirstW //sys Module32Next(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32NextW //sys Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW //sys Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW //sys Thread32First(snapshot Handle, threadEntry *ThreadEntry32) (err error) //sys Thread32Next(snapshot Handle, threadEntry *ThreadEntry32) (err error) //sys DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error) // This function returns 1 byte BOOLEAN rather than the 4 byte BOOL. //sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW //sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW //sys GetCurrentThreadId() (id uint32) //sys CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventW //sys CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventExW //sys OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW //sys SetEvent(event Handle) (err error) = kernel32.SetEvent //sys ResetEvent(event Handle) (err error) = kernel32.ResetEvent //sys PulseEvent(event Handle) (err error) = kernel32.PulseEvent //sys CreateMutex(mutexAttrs *SecurityAttributes, initialOwner bool, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexW //sys CreateMutexEx(mutexAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexExW //sys OpenMutex(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenMutexW //sys ReleaseMutex(mutex Handle) (err error) = kernel32.ReleaseMutex //sys SleepEx(milliseconds uint32, alertable bool) (ret uint32) = kernel32.SleepEx //sys CreateJobObject(jobAttr *SecurityAttributes, name *uint16) (handle Handle, err error) = kernel32.CreateJobObjectW //sys AssignProcessToJobObject(job Handle, process Handle) (err error) = kernel32.AssignProcessToJobObject //sys TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject //sys SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode //sys ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread //sys SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass //sys GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass //sys QueryInformationJobObject(job Handle, JobObjectInformationClass int32, JobObjectInformation uintptr, JobObjectInformationLength uint32, retlen *uint32) (err error) = kernel32.QueryInformationJobObject //sys SetInformationJobObject(job Handle, JobObjectInformationClass uint32, JobObjectInformation uintptr, JobObjectInformationLength uint32) (ret int, err error) //sys GenerateConsoleCtrlEvent(ctrlEvent uint32, processGroupID uint32) (err error) //sys GetProcessId(process Handle) (id uint32, err error) //sys QueryFullProcessImageName(proc Handle, flags uint32, exeName *uint16, size *uint32) (err error) = kernel32.QueryFullProcessImageNameW //sys OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error) //sys SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost //sys GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32) //sys SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error) //sys ClearCommBreak(handle Handle) (err error) //sys ClearCommError(handle Handle, lpErrors *uint32, lpStat *ComStat) (err error) //sys EscapeCommFunction(handle Handle, dwFunc uint32) (err error) //sys GetCommState(handle Handle, lpDCB *DCB) (err error) //sys GetCommModemStatus(handle Handle, lpModemStat *uint32) (err error) //sys GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) //sys PurgeComm(handle Handle, dwFlags uint32) (err error) //sys SetCommBreak(handle Handle) (err error) //sys SetCommMask(handle Handle, dwEvtMask uint32) (err error) //sys SetCommState(handle Handle, lpDCB *DCB) (err error) //sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) //sys SetupComm(handle Handle, dwInQueue uint32, dwOutQueue uint32) (err error) //sys WaitCommEvent(handle Handle, lpEvtMask *uint32, lpOverlapped *Overlapped) (err error) //sys GetActiveProcessorCount(groupNumber uint16) (ret uint32) //sys GetMaximumProcessorCount(groupNumber uint16) (ret uint32) //sys EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) = user32.EnumWindows //sys EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) = user32.EnumChildWindows //sys GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) = user32.GetClassNameW //sys GetDesktopWindow() (hwnd HWND) = user32.GetDesktopWindow //sys GetForegroundWindow() (hwnd HWND) = user32.GetForegroundWindow //sys IsWindow(hwnd HWND) (isWindow bool) = user32.IsWindow //sys IsWindowUnicode(hwnd HWND) (isUnicode bool) = user32.IsWindowUnicode //sys IsWindowVisible(hwnd HWND) (isVisible bool) = user32.IsWindowVisible //sys GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) = user32.GetGUIThreadInfo //sys GetLargePageMinimum() (size uintptr) // Volume Management Functions //sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW //sys DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW //sys FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW //sys FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW //sys FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW //sys FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW //sys FindVolumeClose(findVolume Handle) (err error) //sys FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error) //sys GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailableToCaller *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = GetDiskFreeSpaceExW //sys GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW //sys GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0] //sys GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW //sys GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW //sys GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW //sys GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW //sys GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW //sys GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW //sys QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW //sys SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW //sys SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW //sys InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint32, forceAppsClosed bool, rebootAfterShutdown bool, reason uint32) (err error) = advapi32.InitiateSystemShutdownExW //sys SetProcessShutdownParameters(level uint32, flags uint32) (err error) = kernel32.SetProcessShutdownParameters //sys GetProcessShutdownParameters(level *uint32, flags *uint32) (err error) = kernel32.GetProcessShutdownParameters //sys clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString //sys stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2 //sys coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid //sys CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree //sys CoInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx //sys CoUninitialize() = ole32.CoUninitialize //sys CoGetObject(name *uint16, bindOpts *BIND_OPTS3, guid *GUID, functionTable **uintptr) (ret error) = ole32.CoGetObject //sys getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages //sys getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages //sys getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages //sys getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages //sys findResource(module Handle, name uintptr, resType uintptr) (resInfo Handle, err error) = kernel32.FindResourceW //sys SizeofResource(module Handle, resInfo Handle) (size uint32, err error) = kernel32.SizeofResource //sys LoadResource(module Handle, resInfo Handle) (resData Handle, err error) = kernel32.LoadResource //sys LockResource(resData Handle) (addr uintptr, err error) = kernel32.LockResource // Version APIs //sys GetFileVersionInfoSize(filename string, zeroHandle *Handle) (bufSize uint32, err error) = version.GetFileVersionInfoSizeW //sys GetFileVersionInfo(filename string, handle uint32, bufSize uint32, buffer unsafe.Pointer) (err error) = version.GetFileVersionInfoW //sys VerQueryValue(block unsafe.Pointer, subBlock string, pointerToBufferPointer unsafe.Pointer, bufSize *uint32) (err error) = version.VerQueryValueW // Process Status API (PSAPI) //sys enumProcesses(processIds *uint32, nSize uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses //sys EnumProcessModules(process Handle, module *Handle, cb uint32, cbNeeded *uint32) (err error) = psapi.EnumProcessModules //sys EnumProcessModulesEx(process Handle, module *Handle, cb uint32, cbNeeded *uint32, filterFlag uint32) (err error) = psapi.EnumProcessModulesEx //sys GetModuleInformation(process Handle, module Handle, modinfo *ModuleInfo, cb uint32) (err error) = psapi.GetModuleInformation //sys GetModuleFileNameEx(process Handle, module Handle, filename *uint16, size uint32) (err error) = psapi.GetModuleFileNameExW //sys GetModuleBaseName(process Handle, module Handle, baseName *uint16, size uint32) (err error) = psapi.GetModuleBaseNameW //sys QueryWorkingSetEx(process Handle, pv uintptr, cb uint32) (err error) = psapi.QueryWorkingSetEx // NT Native APIs //sys rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb //sys rtlGetVersion(info *OsVersionInfoEx) (ntstatus error) = ntdll.RtlGetVersion //sys rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers //sys RtlGetCurrentPeb() (peb *PEB) = ntdll.RtlGetCurrentPeb //sys RtlInitUnicodeString(destinationString *NTUnicodeString, sourceString *uint16) = ntdll.RtlInitUnicodeString //sys RtlInitString(destinationString *NTString, sourceString *byte) = ntdll.RtlInitString //sys NtCreateFile(handle *Handle, access uint32, oa *OBJECT_ATTRIBUTES, iosb *IO_STATUS_BLOCK, allocationSize *int64, attributes uint32, share uint32, disposition uint32, options uint32, eabuffer uintptr, ealength uint32) (ntstatus error) = ntdll.NtCreateFile //sys NtCreateNamedPipeFile(pipe *Handle, access uint32, oa *OBJECT_ATTRIBUTES, iosb *IO_STATUS_BLOCK, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (ntstatus error) = ntdll.NtCreateNamedPipeFile //sys NtSetInformationFile(handle Handle, iosb *IO_STATUS_BLOCK, inBuffer *byte, inBufferLen uint32, class uint32) (ntstatus error) = ntdll.NtSetInformationFile //sys RtlDosPathNameToNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToNtPathName_U_WithStatus //sys RtlDosPathNameToRelativeNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToRelativeNtPathName_U_WithStatus //sys RtlDefaultNpAcl(acl **ACL) (ntstatus error) = ntdll.RtlDefaultNpAcl //sys NtQueryInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQueryInformationProcess //sys NtSetInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32) (ntstatus error) = ntdll.NtSetInformationProcess //sys NtQuerySystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQuerySystemInformation //sys NtSetSystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32) (ntstatus error) = ntdll.NtSetSystemInformation //sys RtlAddFunctionTable(functionTable *RUNTIME_FUNCTION, entryCount uint32, baseAddress uintptr) (ret bool) = ntdll.RtlAddFunctionTable //sys RtlDeleteFunctionTable(functionTable *RUNTIME_FUNCTION) (ret bool) = ntdll.RtlDeleteFunctionTable // Desktop Window Manager API (Dwmapi) //sys DwmGetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmGetWindowAttribute //sys DwmSetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmSetWindowAttribute // Windows Multimedia API //sys TimeBeginPeriod (period uint32) (err error) [failretval != 0] = winmm.timeBeginPeriod //sys TimeEndPeriod (period uint32) (err error) [failretval != 0] = winmm.timeEndPeriod // syscall interface implementation for other packages // GetCurrentProcess returns the handle for the current process. // It is a pseudo handle that does not need to be closed. // The returned error is always nil. // // Deprecated: use CurrentProcess for the same Handle without the nil // error. func GetCurrentProcess() (Handle, error) { return CurrentProcess(), nil } // CurrentProcess returns the handle for the current process. // It is a pseudo handle that does not need to be closed. func CurrentProcess() Handle { return Handle(^uintptr(1 - 1)) } // GetCurrentThread returns the handle for the current thread. // It is a pseudo handle that does not need to be closed. // The returned error is always nil. // // Deprecated: use CurrentThread for the same Handle without the nil // error. func GetCurrentThread() (Handle, error) { return CurrentThread(), nil } // CurrentThread returns the handle for the current thread. // It is a pseudo handle that does not need to be closed. func CurrentThread() Handle { return Handle(^uintptr(2 - 1)) } // GetProcAddressByOrdinal retrieves the address of the exported // function from module by ordinal. func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) { r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0) proc = uintptr(r0) if proc == 0 { err = errnoErr(e1) } return } func Exit(code int) { ExitProcess(uint32(code)) } func makeInheritSa() *SecurityAttributes { var sa SecurityAttributes sa.Length = uint32(unsafe.Sizeof(sa)) sa.InheritHandle = 1 return &sa } func Open(path string, mode int, perm uint32) (fd Handle, err error) { if len(path) == 0 { return InvalidHandle, ERROR_FILE_NOT_FOUND } pathp, err := UTF16PtrFromString(path) if err != nil { return InvalidHandle, err } var access uint32 switch mode & (O_RDONLY | O_WRONLY | O_RDWR) { case O_RDONLY: access = GENERIC_READ case O_WRONLY: access = GENERIC_WRITE case O_RDWR: access = GENERIC_READ | GENERIC_WRITE } if mode&O_CREAT != 0 { access |= GENERIC_WRITE } if mode&O_APPEND != 0 { access &^= GENERIC_WRITE access |= FILE_APPEND_DATA } sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE) var sa *SecurityAttributes if mode&O_CLOEXEC == 0 { sa = makeInheritSa() } var createmode uint32 switch { case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL): createmode = CREATE_NEW case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC): createmode = CREATE_ALWAYS case mode&O_CREAT == O_CREAT: createmode = OPEN_ALWAYS case mode&O_TRUNC == O_TRUNC: createmode = TRUNCATE_EXISTING default: createmode = OPEN_EXISTING } var attrs uint32 = FILE_ATTRIBUTE_NORMAL if perm&S_IWRITE == 0 { attrs = FILE_ATTRIBUTE_READONLY } h, e := CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0) return h, e } func Read(fd Handle, p []byte) (n int, err error) { var done uint32 e := ReadFile(fd, p, &done, nil) if e != nil { if e == ERROR_BROKEN_PIPE { // NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin return 0, nil } return 0, e } return int(done), nil } func Write(fd Handle, p []byte) (n int, err error) { if raceenabled { raceReleaseMerge(unsafe.Pointer(&ioSync)) } var done uint32 e := WriteFile(fd, p, &done, nil) if e != nil { return 0, e } return int(done), nil } func ReadFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error { err := readFile(fd, p, done, overlapped) if raceenabled { if *done > 0 { raceWriteRange(unsafe.Pointer(&p[0]), int(*done)) } raceAcquire(unsafe.Pointer(&ioSync)) } return err } func WriteFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error { if raceenabled { raceReleaseMerge(unsafe.Pointer(&ioSync)) } err := writeFile(fd, p, done, overlapped) if raceenabled && *done > 0 { raceReadRange(unsafe.Pointer(&p[0]), int(*done)) } return err } var ioSync int64 func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) { var w uint32 switch whence { case 0: w = FILE_BEGIN case 1: w = FILE_CURRENT case 2: w = FILE_END } hi := int32(offset >> 32) lo := int32(offset) // use GetFileType to check pipe, pipe can't do seek ft, _ := GetFileType(fd) if ft == FILE_TYPE_PIPE { return 0, syscall.EPIPE } rlo, e := SetFilePointer(fd, lo, &hi, w) if e != nil { return 0, e } return int64(hi)<<32 + int64(rlo), nil } func Close(fd Handle) (err error) { return CloseHandle(fd) } var ( Stdin = getStdHandle(STD_INPUT_HANDLE) Stdout = getStdHandle(STD_OUTPUT_HANDLE) Stderr = getStdHandle(STD_ERROR_HANDLE) ) func getStdHandle(stdhandle uint32) (fd Handle) { r, _ := GetStdHandle(stdhandle) return r } const ImplementsGetwd = true func Getwd() (wd string, err error) { b := make([]uint16, 300) n, e := GetCurrentDirectory(uint32(len(b)), &b[0]) if e != nil { return "", e } return string(utf16.Decode(b[0:n])), nil } func Chdir(path string) (err error) { pathp, err := UTF16PtrFromString(path) if err != nil { return err } return SetCurrentDirectory(pathp) } func Mkdir(path string, mode uint32) (err error) { pathp, err := UTF16PtrFromString(path) if err != nil { return err } return CreateDirectory(pathp, nil) } func Rmdir(path string) (err error) { pathp, err := UTF16PtrFromString(path) if err != nil { return err } return RemoveDirectory(pathp) } func Unlink(path string) (err error) { pathp, err := UTF16PtrFromString(path) if err != nil { return err } return DeleteFile(pathp) } func Rename(oldpath, newpath string) (err error) { from, err := UTF16PtrFromString(oldpath) if err != nil { return err } to, err := UTF16PtrFromString(newpath) if err != nil { return err } return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING) } func ComputerName() (name string, err error) { var n uint32 = MAX_COMPUTERNAME_LENGTH + 1 b := make([]uint16, n) e := GetComputerName(&b[0], &n) if e != nil { return "", e } return string(utf16.Decode(b[0:n])), nil } func DurationSinceBoot() time.Duration { return time.Duration(getTickCount64()) * time.Millisecond } func Ftruncate(fd Handle, length int64) (err error) { type _FILE_END_OF_FILE_INFO struct { EndOfFile int64 } var info _FILE_END_OF_FILE_INFO info.EndOfFile = length return SetFileInformationByHandle(fd, FileEndOfFileInfo, (*byte)(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info))) } func Gettimeofday(tv *Timeval) (err error) { var ft Filetime GetSystemTimeAsFileTime(&ft) *tv = NsecToTimeval(ft.Nanoseconds()) return nil } func Pipe(p []Handle) (err error) { if len(p) != 2 { return syscall.EINVAL } var r, w Handle e := CreatePipe(&r, &w, makeInheritSa(), 0) if e != nil { return e } p[0] = r p[1] = w return nil } func Utimes(path string, tv []Timeval) (err error) { if len(tv) != 2 { return syscall.EINVAL } pathp, e := UTF16PtrFromString(path) if e != nil { return e } h, e := CreateFile(pathp, FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) if e != nil { return e } defer CloseHandle(h) a := NsecToFiletime(tv[0].Nanoseconds()) w := NsecToFiletime(tv[1].Nanoseconds()) return SetFileTime(h, nil, &a, &w) } func UtimesNano(path string, ts []Timespec) (err error) { if len(ts) != 2 { return syscall.EINVAL } pathp, e := UTF16PtrFromString(path) if e != nil { return e } h, e := CreateFile(pathp, FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) if e != nil { return e } defer CloseHandle(h) a := NsecToFiletime(TimespecToNsec(ts[0])) w := NsecToFiletime(TimespecToNsec(ts[1])) return SetFileTime(h, nil, &a, &w) } func Fsync(fd Handle) (err error) { return FlushFileBuffers(fd) } func Chmod(path string, mode uint32) (err error) { p, e := UTF16PtrFromString(path) if e != nil { return e } attrs, e := GetFileAttributes(p) if e != nil { return e } if mode&S_IWRITE != 0 { attrs &^= FILE_ATTRIBUTE_READONLY } else { attrs |= FILE_ATTRIBUTE_READONLY } return SetFileAttributes(p, attrs) } func LoadGetSystemTimePreciseAsFileTime() error { return procGetSystemTimePreciseAsFileTime.Find() } func LoadCancelIoEx() error { return procCancelIoEx.Find() } func LoadSetFileCompletionNotificationModes() error { return procSetFileCompletionNotificationModes.Find() } func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) { // Every other win32 array API takes arguments as "pointer, count", except for this function. So we // can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore // trivially stub this ourselves. var handlePtr *Handle if len(handles) > 0 { handlePtr = &handles[0] } return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds) } // net api calls const socket_error = uintptr(^uint32(0)) //sys WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup //sys WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup //sys WSAIoctl(s Handle, iocc uint32, inbuf *byte, cbif uint32, outbuf *byte, cbob uint32, cbbr *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) [failretval==socket_error] = ws2_32.WSAIoctl //sys WSALookupServiceBegin(querySet *WSAQUERYSET, flags uint32, handle *Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceBeginW //sys WSALookupServiceNext(handle Handle, flags uint32, size *int32, querySet *WSAQUERYSET) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceNextW //sys WSALookupServiceEnd(handle Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceEnd //sys socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket //sys sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto //sys recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom //sys Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt //sys Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt //sys bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind //sys connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect //sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname //sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername //sys listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen //sys shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown //sys Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket //sys AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx //sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs //sys WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv //sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend //sys WSARecvFrom(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, from *RawSockaddrAny, fromlen *int32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecvFrom //sys WSASendTo(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to *RawSockaddrAny, tolen int32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASendTo //sys WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW //sys GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname //sys GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname //sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs //sys GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname //sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W //sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree //sys DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W //sys GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW //sys FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW //sys GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry //sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo //sys SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes //sys WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW //sys WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult //sys GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses //sys GetACP() (acp uint32) = kernel32.GetACP //sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar //sys getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) = iphlpapi.GetBestInterfaceEx //sys GetIfEntry2Ex(level uint32, row *MibIfRow2) (errcode error) = iphlpapi.GetIfEntry2Ex //sys GetUnicastIpAddressEntry(row *MibUnicastIpAddressRow) (errcode error) = iphlpapi.GetUnicastIpAddressEntry //sys NotifyIpInterfaceChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyIpInterfaceChange //sys NotifyUnicastIpAddressChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyUnicastIpAddressChange //sys CancelMibChangeNotify2(notificationHandle Handle) (errcode error) = iphlpapi.CancelMibChangeNotify2 // For testing: clients can set this flag to force // creation of IPv6 sockets to return EAFNOSUPPORT. var SocketDisableIPv6 bool type RawSockaddrInet4 struct { Family uint16 Port uint16 Addr [4]byte /* in_addr */ Zero [8]uint8 } type RawSockaddrInet6 struct { Family uint16 Port uint16 Flowinfo uint32 Addr [16]byte /* in6_addr */ Scope_id uint32 } type RawSockaddr struct { Family uint16 Data [14]int8 } type RawSockaddrAny struct { Addr RawSockaddr Pad [100]int8 } type Sockaddr interface { sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs } type SockaddrInet4 struct { Port int Addr [4]byte raw RawSockaddrInet4 } func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) { if sa.Port < 0 || sa.Port > 0xFFFF { return nil, 0, syscall.EINVAL } sa.raw.Family = AF_INET p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) p[0] = byte(sa.Port >> 8) p[1] = byte(sa.Port) sa.raw.Addr = sa.Addr return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil } type SockaddrInet6 struct { Port int ZoneId uint32 Addr [16]byte raw RawSockaddrInet6 } func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) { if sa.Port < 0 || sa.Port > 0xFFFF { return nil, 0, syscall.EINVAL } sa.raw.Family = AF_INET6 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) p[0] = byte(sa.Port >> 8) p[1] = byte(sa.Port) sa.raw.Scope_id = sa.ZoneId sa.raw.Addr = sa.Addr return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil } type RawSockaddrUnix struct { Family uint16 Path [UNIX_PATH_MAX]int8 } type SockaddrUnix struct { Name string raw RawSockaddrUnix } func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) { name := sa.Name n := len(name) if n > len(sa.raw.Path) { return nil, 0, syscall.EINVAL } if n == len(sa.raw.Path) && name[0] != '@' { return nil, 0, syscall.EINVAL } sa.raw.Family = AF_UNIX for i := 0; i < n; i++ { sa.raw.Path[i] = int8(name[i]) } // length is family (uint16), name, NUL. sl := int32(2) if n > 0 { sl += int32(n) + 1 } if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) { // Check sl > 3 so we don't change unnamed socket behavior. sa.raw.Path[0] = 0 // Don't count trailing NUL for abstract address. sl-- } return unsafe.Pointer(&sa.raw), sl, nil } type RawSockaddrBth struct { AddressFamily [2]byte BtAddr [8]byte ServiceClassId [16]byte Port [4]byte } type SockaddrBth struct { BtAddr uint64 ServiceClassId GUID Port uint32 raw RawSockaddrBth } func (sa *SockaddrBth) sockaddr() (unsafe.Pointer, int32, error) { family := AF_BTH sa.raw = RawSockaddrBth{ AddressFamily: *(*[2]byte)(unsafe.Pointer(&family)), BtAddr: *(*[8]byte)(unsafe.Pointer(&sa.BtAddr)), Port: *(*[4]byte)(unsafe.Pointer(&sa.Port)), ServiceClassId: *(*[16]byte)(unsafe.Pointer(&sa.ServiceClassId)), } return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil } func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) { switch rsa.Addr.Family { case AF_UNIX: pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) sa := new(SockaddrUnix) if pp.Path[0] == 0 { // "Abstract" Unix domain socket. // Rewrite leading NUL as @ for textual display. // (This is the standard convention.) // Not friendly to overwrite in place, // but the callers below don't care. pp.Path[0] = '@' } // Assume path ends at NUL. // This is not technically the Linux semantics for // abstract Unix domain sockets--they are supposed // to be uninterpreted fixed-size binary blobs--but // everyone uses this convention. n := 0 for n < len(pp.Path) && pp.Path[n] != 0 { n++ } sa.Name = string(unsafe.Slice((*byte)(unsafe.Pointer(&pp.Path[0])), n)) return sa, nil case AF_INET: pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) sa := new(SockaddrInet4) p := (*[2]byte)(unsafe.Pointer(&pp.Port)) sa.Port = int(p[0])<<8 + int(p[1]) sa.Addr = pp.Addr return sa, nil case AF_INET6: pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) sa := new(SockaddrInet6) p := (*[2]byte)(unsafe.Pointer(&pp.Port)) sa.Port = int(p[0])<<8 + int(p[1]) sa.ZoneId = pp.Scope_id sa.Addr = pp.Addr return sa, nil } return nil, syscall.EAFNOSUPPORT } func Socket(domain, typ, proto int) (fd Handle, err error) { if domain == AF_INET6 && SocketDisableIPv6 { return InvalidHandle, syscall.EAFNOSUPPORT } return socket(int32(domain), int32(typ), int32(proto)) } func SetsockoptInt(fd Handle, level, opt int, value int) (err error) { v := int32(value) return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))) } func Bind(fd Handle, sa Sockaddr) (err error) { ptr, n, err := sa.sockaddr() if err != nil { return err } return bind(fd, ptr, n) } func Connect(fd Handle, sa Sockaddr) (err error) { ptr, n, err := sa.sockaddr() if err != nil { return err } return connect(fd, ptr, n) } func GetBestInterfaceEx(sa Sockaddr, pdwBestIfIndex *uint32) (err error) { ptr, _, err := sa.sockaddr() if err != nil { return err } return getBestInterfaceEx(ptr, pdwBestIfIndex) } func Getsockname(fd Handle) (sa Sockaddr, err error) { var rsa RawSockaddrAny l := int32(unsafe.Sizeof(rsa)) if err = getsockname(fd, &rsa, &l); err != nil { return } return rsa.Sockaddr() } func Getpeername(fd Handle) (sa Sockaddr, err error) { var rsa RawSockaddrAny l := int32(unsafe.Sizeof(rsa)) if err = getpeername(fd, &rsa, &l); err != nil { return } return rsa.Sockaddr() } func Listen(s Handle, n int) (err error) { return listen(s, int32(n)) } func Shutdown(fd Handle, how int) (err error) { return shutdown(fd, int32(how)) } func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) { var rsa unsafe.Pointer var l int32 if to != nil { rsa, l, err = to.sockaddr() if err != nil { return err } } return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine) } func LoadGetAddrInfo() error { return procGetAddrInfoW.Find() } var connectExFunc struct { once sync.Once addr uintptr err error } func LoadConnectEx() error { connectExFunc.once.Do(func() { var s Handle s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) if connectExFunc.err != nil { return } defer CloseHandle(s) var n uint32 connectExFunc.err = WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER, (*byte)(unsafe.Pointer(&WSAID_CONNECTEX)), uint32(unsafe.Sizeof(WSAID_CONNECTEX)), (*byte)(unsafe.Pointer(&connectExFunc.addr)), uint32(unsafe.Sizeof(connectExFunc.addr)), &n, nil, 0) }) return connectExFunc.err } func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) { r1, _, e1 := syscall.Syscall9(connectExFunc.addr, 7, uintptr(s), uintptr(name), uintptr(namelen), uintptr(unsafe.Pointer(sendBuf)), uintptr(sendDataLen), uintptr(unsafe.Pointer(bytesSent)), uintptr(unsafe.Pointer(overlapped)), 0, 0) if r1 == 0 { if e1 != 0 { err = error(e1) } else { err = syscall.EINVAL } } return } func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error { err := LoadConnectEx() if err != nil { return errorspkg.New("failed to find ConnectEx: " + err.Error()) } ptr, n, err := sa.sockaddr() if err != nil { return err } return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped) } var sendRecvMsgFunc struct { once sync.Once sendAddr uintptr recvAddr uintptr err error } func loadWSASendRecvMsg() error { sendRecvMsgFunc.once.Do(func() { var s Handle s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) if sendRecvMsgFunc.err != nil { return } defer CloseHandle(s) var n uint32 sendRecvMsgFunc.err = WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER, (*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)), uint32(unsafe.Sizeof(WSAID_WSARECVMSG)), (*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)), uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)), &n, nil, 0) if sendRecvMsgFunc.err != nil { return } sendRecvMsgFunc.err = WSAIoctl(s, SIO_GET_EXTENSION_FUNCTION_POINTER, (*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)), uint32(unsafe.Sizeof(WSAID_WSASENDMSG)), (*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)), uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)), &n, nil, 0) }) return sendRecvMsgFunc.err } func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error { err := loadWSASendRecvMsg() if err != nil { return err } r1, _, e1 := syscall.Syscall6(sendRecvMsgFunc.sendAddr, 6, uintptr(fd), uintptr(unsafe.Pointer(msg)), uintptr(flags), uintptr(unsafe.Pointer(bytesSent)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine))) if r1 == socket_error { err = errnoErr(e1) } return err } func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error { err := loadWSASendRecvMsg() if err != nil { return err } r1, _, e1 := syscall.Syscall6(sendRecvMsgFunc.recvAddr, 5, uintptr(fd), uintptr(unsafe.Pointer(msg)), uintptr(unsafe.Pointer(bytesReceived)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine)), 0) if r1 == socket_error { err = errnoErr(e1) } return err } // Invented structures to support what package os expects. type Rusage struct { CreationTime Filetime ExitTime Filetime KernelTime Filetime UserTime Filetime } type WaitStatus struct { ExitCode uint32 } func (w WaitStatus) Exited() bool { return true } func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) } func (w WaitStatus) Signal() Signal { return -1 } func (w WaitStatus) CoreDump() bool { return false } func (w WaitStatus) Stopped() bool { return false } func (w WaitStatus) Continued() bool { return false } func (w WaitStatus) StopSignal() Signal { return -1 } func (w WaitStatus) Signaled() bool { return false } func (w WaitStatus) TrapCause() int { return -1 } // Timespec is an invented structure on Windows, but here for // consistency with the corresponding package for other operating systems. type Timespec struct { Sec int64 Nsec int64 } func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } func NsecToTimespec(nsec int64) (ts Timespec) { ts.Sec = nsec / 1e9 ts.Nsec = nsec % 1e9 return } // TODO(brainman): fix all needed for net func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS } func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) { var rsa RawSockaddrAny l := int32(unsafe.Sizeof(rsa)) n32, err := recvfrom(fd, p, int32(flags), &rsa, &l) n = int(n32) if err != nil { return } from, err = rsa.Sockaddr() return } func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) { ptr, l, err := to.sockaddr() if err != nil { return err } return sendto(fd, p, int32(flags), ptr, l) } func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS } // The Linger struct is wrong but we only noticed after Go 1. // sysLinger is the real system call structure. // BUG(brainman): The definition of Linger is not appropriate for direct use // with Setsockopt and Getsockopt. // Use SetsockoptLinger instead. type Linger struct { Onoff int32 Linger int32 } type sysLinger struct { Onoff uint16 Linger uint16 } type IPMreq struct { Multiaddr [4]byte /* in_addr */ Interface [4]byte /* in_addr */ } type IPv6Mreq struct { Multiaddr [16]byte /* in6_addr */ Interface uint32 } func GetsockoptInt(fd Handle, level, opt int) (int, error) { v := int32(0) l := int32(unsafe.Sizeof(v)) err := Getsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), &l) return int(v), err } func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) { sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)} return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys))) } func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) { return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4) } func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) { return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq))) } func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) { return syscall.EWINDOWS } func EnumProcesses(processIds []uint32, bytesReturned *uint32) error { // EnumProcesses syscall expects the size parameter to be in bytes, but the code generated with mksyscall uses // the length of the processIds slice instead. Hence, this wrapper function is added to fix the discrepancy. var p *uint32 if len(processIds) > 0 { p = &processIds[0] } size := uint32(len(processIds) * 4) return enumProcesses(p, size, bytesReturned) } func Getpid() (pid int) { return int(GetCurrentProcessId()) } func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) { // NOTE(rsc): The Win32finddata struct is wrong for the system call: // the two paths are each one uint16 short. Use the correct struct, // a win32finddata1, and then copy the results out. // There is no loss of expressivity here, because the final // uint16, if it is used, is supposed to be a NUL, and Go doesn't need that. // For Go 1.1, we might avoid the allocation of win32finddata1 here // by adding a final Bug [2]uint16 field to the struct and then // adjusting the fields in the result directly. var data1 win32finddata1 handle, err = findFirstFile1(name, &data1) if err == nil { copyFindData(data, &data1) } return } func FindNextFile(handle Handle, data *Win32finddata) (err error) { var data1 win32finddata1 err = findNextFile1(handle, &data1) if err == nil { copyFindData(data, &data1) } return } func getProcessEntry(pid int) (*ProcessEntry32, error) { snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0) if err != nil { return nil, err } defer CloseHandle(snapshot) var procEntry ProcessEntry32 procEntry.Size = uint32(unsafe.Sizeof(procEntry)) if err = Process32First(snapshot, &procEntry); err != nil { return nil, err } for { if procEntry.ProcessID == uint32(pid) { return &procEntry, nil } err = Process32Next(snapshot, &procEntry) if err != nil { return nil, err } } } func Getppid() (ppid int) { pe, err := getProcessEntry(Getpid()) if err != nil { return -1 } return int(pe.ParentProcessID) } // TODO(brainman): fix all needed for os func Fchdir(fd Handle) (err error) { return syscall.EWINDOWS } func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS } func Symlink(path, link string) (err error) { return syscall.EWINDOWS } func Fchmod(fd Handle, mode uint32) (err error) { return syscall.EWINDOWS } func Chown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } func Fchown(fd Handle, uid int, gid int) (err error) { return syscall.EWINDOWS } func Getuid() (uid int) { return -1 } func Geteuid() (euid int) { return -1 } func Getgid() (gid int) { return -1 } func Getegid() (egid int) { return -1 } func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS } type Signal int func (s Signal) Signal() {} func (s Signal) String() string { if 0 <= s && int(s) < len(signals) { str := signals[s] if str != "" { return str } } return "signal " + itoa(int(s)) } func LoadCreateSymbolicLink() error { return procCreateSymbolicLinkW.Find() } // Readlink returns the destination of the named symbolic link. func Readlink(path string, buf []byte) (n int, err error) { fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0) if err != nil { return -1, err } defer CloseHandle(fd) rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE) var bytesReturned uint32 err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil) if err != nil { return -1, err } rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0])) var s string switch rdb.ReparseTag { case IO_REPARSE_TAG_SYMLINK: data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) case IO_REPARSE_TAG_MOUNT_POINT: data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) default: // the path is not a symlink or junction but another type of reparse // point return -1, syscall.ENOENT } n = copy(buf, []byte(s)) return n, nil } // GUIDFromString parses a string in the form of // "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" into a GUID. func GUIDFromString(str string) (GUID, error) { guid := GUID{} str16, err := syscall.UTF16PtrFromString(str) if err != nil { return guid, err } err = clsidFromString(str16, &guid) if err != nil { return guid, err } return guid, nil } // GenerateGUID creates a new random GUID. func GenerateGUID() (GUID, error) { guid := GUID{} err := coCreateGuid(&guid) if err != nil { return guid, err } return guid, nil } // String returns the canonical string form of the GUID, // in the form of "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}". func (guid GUID) String() string { var str [100]uint16 chars := stringFromGUID2(&guid, &str[0], int32(len(str))) if chars <= 1 { return "" } return string(utf16.Decode(str[:chars-1])) } // KnownFolderPath returns a well-known folder path for the current user, specified by one of // the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. func KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { return Token(0).KnownFolderPath(folderID, flags) } // KnownFolderPath returns a well-known folder path for the user token, specified by one of // the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { var p *uint16 err := shGetKnownFolderPath(folderID, flags, t, &p) if err != nil { return "", err } defer CoTaskMemFree(unsafe.Pointer(p)) return UTF16PtrToString(p), nil } // RtlGetVersion returns the version of the underlying operating system, ignoring // manifest semantics but is affected by the application compatibility layer. func RtlGetVersion() *OsVersionInfoEx { info := &OsVersionInfoEx{} info.osVersionInfoSize = uint32(unsafe.Sizeof(*info)) // According to documentation, this function always succeeds. // The function doesn't even check the validity of the // osVersionInfoSize member. Disassembling ntdll.dll indicates // that the documentation is indeed correct about that. _ = rtlGetVersion(info) return info } // RtlGetNtVersionNumbers returns the version of the underlying operating system, // ignoring manifest semantics and the application compatibility layer. func RtlGetNtVersionNumbers() (majorVersion, minorVersion, buildNumber uint32) { rtlGetNtVersionNumbers(&majorVersion, &minorVersion, &buildNumber) buildNumber &= 0xffff return } // GetProcessPreferredUILanguages retrieves the process preferred UI languages. func GetProcessPreferredUILanguages(flags uint32) ([]string, error) { return getUILanguages(flags, getProcessPreferredUILanguages) } // GetThreadPreferredUILanguages retrieves the thread preferred UI languages for the current thread. func GetThreadPreferredUILanguages(flags uint32) ([]string, error) { return getUILanguages(flags, getThreadPreferredUILanguages) } // GetUserPreferredUILanguages retrieves information about the user preferred UI languages. func GetUserPreferredUILanguages(flags uint32) ([]string, error) { return getUILanguages(flags, getUserPreferredUILanguages) } // GetSystemPreferredUILanguages retrieves the system preferred UI languages. func GetSystemPreferredUILanguages(flags uint32) ([]string, error) { return getUILanguages(flags, getSystemPreferredUILanguages) } func getUILanguages(flags uint32, f func(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) error) ([]string, error) { size := uint32(128) for { var numLanguages uint32 buf := make([]uint16, size) err := f(flags, &numLanguages, &buf[0], &size) if err == ERROR_INSUFFICIENT_BUFFER { continue } if err != nil { return nil, err } buf = buf[:size] if numLanguages == 0 || len(buf) == 0 { // GetProcessPreferredUILanguages may return numLanguages==0 with "\0\0" return []string{}, nil } if buf[len(buf)-1] == 0 { buf = buf[:len(buf)-1] // remove terminating null } languages := make([]string, 0, numLanguages) from := 0 for i, c := range buf { if c == 0 { languages = append(languages, string(utf16.Decode(buf[from:i]))) from = i + 1 } } return languages, nil } } func SetConsoleCursorPosition(console Handle, position Coord) error { return setConsoleCursorPosition(console, *((*uint32)(unsafe.Pointer(&position)))) } func GetStartupInfo(startupInfo *StartupInfo) error { getStartupInfo(startupInfo) return nil } func (s NTStatus) Errno() syscall.Errno { return rtlNtStatusToDosErrorNoTeb(s) } func langID(pri, sub uint16) uint32 { return uint32(sub)<<10 | uint32(pri) } func (s NTStatus) Error() string { b := make([]uint16, 300) n, err := FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_FROM_HMODULE|FORMAT_MESSAGE_ARGUMENT_ARRAY, modntdll.Handle(), uint32(s), langID(LANG_ENGLISH, SUBLANG_ENGLISH_US), b, nil) if err != nil { return fmt.Sprintf("NTSTATUS 0x%08x", uint32(s)) } // trim terminating \r and \n for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- { } return string(utf16.Decode(b[:n])) } // NewNTUnicodeString returns a new NTUnicodeString structure for use with native // NT APIs that work over the NTUnicodeString type. Note that most Windows APIs // do not use NTUnicodeString, and instead UTF16PtrFromString should be used for // the more common *uint16 string type. func NewNTUnicodeString(s string) (*NTUnicodeString, error) { s16, err := UTF16FromString(s) if err != nil { return nil, err } n := uint16(len(s16) * 2) return &NTUnicodeString{ Length: n - 2, // subtract 2 bytes for the NULL terminator MaximumLength: n, Buffer: &s16[0], }, nil } // Slice returns a uint16 slice that aliases the data in the NTUnicodeString. func (s *NTUnicodeString) Slice() []uint16 { slice := unsafe.Slice(s.Buffer, s.MaximumLength) return slice[:s.Length] } func (s *NTUnicodeString) String() string { return UTF16ToString(s.Slice()) } // NewNTString returns a new NTString structure for use with native // NT APIs that work over the NTString type. Note that most Windows APIs // do not use NTString, and instead UTF16PtrFromString should be used for // the more common *uint16 string type. func NewNTString(s string) (*NTString, error) { var nts NTString s8, err := BytePtrFromString(s) if err != nil { return nil, err } RtlInitString(&nts, s8) return &nts, nil } // Slice returns a byte slice that aliases the data in the NTString. func (s *NTString) Slice() []byte { slice := unsafe.Slice(s.Buffer, s.MaximumLength) return slice[:s.Length] } func (s *NTString) String() string { return ByteSliceToString(s.Slice()) } // FindResource resolves a resource of the given name and resource type. func FindResource(module Handle, name, resType ResourceIDOrString) (Handle, error) { var namePtr, resTypePtr uintptr var name16, resType16 *uint16 var err error resolvePtr := func(i interface{}, keep **uint16) (uintptr, error) { switch v := i.(type) { case string: *keep, err = UTF16PtrFromString(v) if err != nil { return 0, err } return uintptr(unsafe.Pointer(*keep)), nil case ResourceID: return uintptr(v), nil } return 0, errorspkg.New("parameter must be a ResourceID or a string") } namePtr, err = resolvePtr(name, &name16) if err != nil { return 0, err } resTypePtr, err = resolvePtr(resType, &resType16) if err != nil { return 0, err } resInfo, err := findResource(module, namePtr, resTypePtr) runtime.KeepAlive(name16) runtime.KeepAlive(resType16) return resInfo, err } func LoadResourceData(module, resInfo Handle) (data []byte, err error) { size, err := SizeofResource(module, resInfo) if err != nil { return } resData, err := LoadResource(module, resInfo) if err != nil { return } ptr, err := LockResource(resData) if err != nil { return } data = unsafe.Slice((*byte)(unsafe.Pointer(ptr)), size) return } // PSAPI_WORKING_SET_EX_BLOCK contains extended working set information for a page. type PSAPI_WORKING_SET_EX_BLOCK uint64 // Valid returns the validity of this page. // If this bit is 1, the subsequent members are valid; otherwise they should be ignored. func (b PSAPI_WORKING_SET_EX_BLOCK) Valid() bool { return (b & 1) == 1 } // ShareCount is the number of processes that share this page. The maximum value of this member is 7. func (b PSAPI_WORKING_SET_EX_BLOCK) ShareCount() uint64 { return b.intField(1, 3) } // Win32Protection is the memory protection attributes of the page. For a list of values, see // https://docs.microsoft.com/en-us/windows/win32/memory/memory-protection-constants func (b PSAPI_WORKING_SET_EX_BLOCK) Win32Protection() uint64 { return b.intField(4, 11) } // Shared returns the shared status of this page. // If this bit is 1, the page can be shared. func (b PSAPI_WORKING_SET_EX_BLOCK) Shared() bool { return (b & (1 << 15)) == 1 } // Node is the NUMA node. The maximum value of this member is 63. func (b PSAPI_WORKING_SET_EX_BLOCK) Node() uint64 { return b.intField(16, 6) } // Locked returns the locked status of this page. // If this bit is 1, the virtual page is locked in physical memory. func (b PSAPI_WORKING_SET_EX_BLOCK) Locked() bool { return (b & (1 << 22)) == 1 } // LargePage returns the large page status of this page. // If this bit is 1, the page is a large page. func (b PSAPI_WORKING_SET_EX_BLOCK) LargePage() bool { return (b & (1 << 23)) == 1 } // Bad returns the bad status of this page. // If this bit is 1, the page is has been reported as bad. func (b PSAPI_WORKING_SET_EX_BLOCK) Bad() bool { return (b & (1 << 31)) == 1 } // intField extracts an integer field in the PSAPI_WORKING_SET_EX_BLOCK union. func (b PSAPI_WORKING_SET_EX_BLOCK) intField(start, length int) uint64 { var mask PSAPI_WORKING_SET_EX_BLOCK for pos := start; pos < start+length; pos++ { mask |= (1 << pos) } masked := b & mask return uint64(masked >> start) } // PSAPI_WORKING_SET_EX_INFORMATION contains extended working set information for a process. type PSAPI_WORKING_SET_EX_INFORMATION struct { // The virtual address. VirtualAddress Pointer // A PSAPI_WORKING_SET_EX_BLOCK union that indicates the attributes of the page at VirtualAddress. VirtualAttributes PSAPI_WORKING_SET_EX_BLOCK } // CreatePseudoConsole creates a windows pseudo console. func CreatePseudoConsole(size Coord, in Handle, out Handle, flags uint32, pconsole *Handle) error { // We need this wrapper to manually cast Coord to uint32. The autogenerated wrappers only // accept arguments that can be casted to uintptr, and Coord can't. return createPseudoConsole(*((*uint32)(unsafe.Pointer(&size))), in, out, flags, pconsole) } // ResizePseudoConsole resizes the internal buffers of the pseudo console to the width and height specified in `size`. func ResizePseudoConsole(pconsole Handle, size Coord) error { // We need this wrapper to manually cast Coord to uint32. The autogenerated wrappers only // accept arguments that can be casted to uintptr, and Coord can't. return resizePseudoConsole(pconsole, *((*uint32)(unsafe.Pointer(&size)))) } // DCB constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-dcb. const ( CBR_110 = 110 CBR_300 = 300 CBR_600 = 600 CBR_1200 = 1200 CBR_2400 = 2400 CBR_4800 = 4800 CBR_9600 = 9600 CBR_14400 = 14400 CBR_19200 = 19200 CBR_38400 = 38400 CBR_57600 = 57600 CBR_115200 = 115200 CBR_128000 = 128000 CBR_256000 = 256000 DTR_CONTROL_DISABLE = 0x00000000 DTR_CONTROL_ENABLE = 0x00000010 DTR_CONTROL_HANDSHAKE = 0x00000020 RTS_CONTROL_DISABLE = 0x00000000 RTS_CONTROL_ENABLE = 0x00001000 RTS_CONTROL_HANDSHAKE = 0x00002000 RTS_CONTROL_TOGGLE = 0x00003000 NOPARITY = 0 ODDPARITY = 1 EVENPARITY = 2 MARKPARITY = 3 SPACEPARITY = 4 ONESTOPBIT = 0 ONE5STOPBITS = 1 TWOSTOPBITS = 2 ) // EscapeCommFunction constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-escapecommfunction. const ( SETXOFF = 1 SETXON = 2 SETRTS = 3 CLRRTS = 4 SETDTR = 5 CLRDTR = 6 SETBREAK = 8 CLRBREAK = 9 ) // PurgeComm constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-purgecomm. const ( PURGE_TXABORT = 0x0001 PURGE_RXABORT = 0x0002 PURGE_TXCLEAR = 0x0004 PURGE_RXCLEAR = 0x0008 ) // SetCommMask constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setcommmask. const ( EV_RXCHAR = 0x0001 EV_RXFLAG = 0x0002 EV_TXEMPTY = 0x0004 EV_CTS = 0x0008 EV_DSR = 0x0010 EV_RLSD = 0x0020 EV_BREAK = 0x0040 EV_ERR = 0x0080 EV_RING = 0x0100 )